Fly-exit for screen doors and windows



R. B. WATSON AND J. C. KIT TERIVIAN.

FLY EXIT FOR SCREEN DOORS AND WINDOWS.

APPLICATION FILED DEC 2, 1919.

1,3%3,@99 Patentediune 8,1920,

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ROBERTIB. W'ATSON AILTID. JESSE G. KITTEBMAN, 0F CORYDON, INDIANA.

FLY-EXIT Ffll't SCREEN DOORS AND WINDOWS.

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Specification of Letters Patent.

Patented June 8, Mlfid.

Application filed December 2, 1919. Serial No. 341,997.

To all whom it may concern:

Be it known that we, ROBERT WATSON and Jnssn C. KITTERMAN, citizens of the United States, residing at Corydon, in the county of Harrison, State of Indiana, have invented certainnew and useful improve ments in Fly-Exits for Screen Doors and ll'indows; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements inwindow and door screens,

and particularly to fly exits therefor.

One object of the present invention is to provide a novel and improved fly exit attachment for a screen door or window whereby the flies will be permitted to readily pass out.

nother object is to so arrange the exit that the natural tendency of the. fly to crawl to the upper end of the door or window to escape is taken advantage of.

Another object of the present invention is to provide a novel and improved, device of this character which is an improvement on our former Patent #l,314,774, issued September 2, 1919, in the names of Robert B. Watson and Jesse C. Kitterman.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is an elevation of the outside of a screen door made in accordance with our invention, showing the improved exits for the flies.

Fig. 2 is an elevation of the inside of the screen door, I

Fig. 3 is an enlarged vertical sectional view taken on the line 3-3 of Fig. 2, through one of the exit compartments and the corresponding exit notch in the upper strip of the door frame.

Referring particularly to the accompanying drawing, there is shown a portion of a screen door which includes the sides 10 and the upper cross strip 11. Secured to the outer face of the sides and upper strip of the door is the wire screen 12, the same being covered, at its marginal edges with the usual molding strips 13. Formed through the lower edge of the strip 11 of the door frame are the notches or recesses 11, the same opening through both the nner and outer faces of the strip, and bemg disposed above the upper marginal edge of the'screen 12, as shown in Fig. 1. To the upper portions of the inner faces of the side strips 10 and to the correspondingface of the upper strip 11, is a piece of screen 14, the upper edge of which is disposed above the upper portions of the recesses and the lower edge being disposed a suitable distance downwardly from said strip. Molding strips 15 bind this screen 14: to the doorframe. Disposed between the screens 12 and 14 is a strip of wire screen 16 whose side edges abut against the faces of the said screens, said screen strip being bent in a zig-zag fashion, and having the junctions of the inclined portions, shown at 17, arouate and disposed within the recesses, as clearly seen in Fig. 1. The opposite ends of the strip 16 are secured to the inner side faces of the side strips 10 of the door frame, whereby a number of upwardly tapering compartments are formed into which the flies crawl in their travel toward the upper end of the door. By reason of the fact that the arcuate portions 17 are disposed in the recesses 11, and the "fact that the upper edge of the screen 14: is below the recesses, permits the outer ends of said arcuate portions tobe open to the outside whereby the flies can easily pass out frombetween said screens. The screen 12 efiectively closes the inner ends of the arcuate portions 17 so that the flies must pass outwardly. i

It will be noted that the binding molding strip 15 which extends horizontally across the door, below the openings or recesses, are in the plane of the outer screen so that the flies walk from this screen onto the strip and fly outwardly therefrom, to the outside air.

While we have shown the exit as applied to a screen door we wish it understood that the same may be as easily and effectively ap lied to a window screenhat is claimed is:

A fly exit comprising a frame having side and top portions, the top portion being formed with transverse open ended recesses in the lower face thereof, wire screen secured to the outer face of the screen with its upper edge covering one end of each of the recesses, a screen secured to the other face, In testimony whereof, we affix our signaof the frame and having its upper edge tnres, in the presence of two Witnesses.

disposed below the recesses whereby said ROBERT B VATSON recesses are open therea-t and fly passages between the screens and extending into the JESSE KITTERMAN' recesses and formed with transverse pas- Witnesses.

sages closed at one end by the first screen TIG. VAN H0011,

and open at the other ends. NELLIE BARROW. 

